Exemplo n.º 1
0
        private void VisitImage(IElement htmlElement)
        {
            IHtmlImageElement imageElement = htmlElement as IHtmlImageElement;

            if (imageElement != null && imageElement.HasAttribute("alt"))
            {
                var alt = imageElement.GetAttribute("alt");
                if (!String.IsNullOrEmpty(alt))
                {
                    AppendText(alt);
                }
            }
        }
        public async Task <IEnumerable <IDeal> > Scrape(CancellationToken token)
        {
            List <IDeal> deals = new List <IDeal>();

            DocumentRequest request  = DocumentRequest.Get(Url.Create(URL));
            IDocument       document = await context.OpenAsync(request, token);

            token.ThrowIfCancellationRequested();

            IHtmlElement body = document.Body;

            IEnumerable <IHtmlListItemElement> items = body.QuerySelectorAll <IHtmlListItemElement>(".grid-tile");

            foreach (IHtmlListItemElement element in items)
            {
                IHtmlDivElement titleElement = element.QuerySelector <IHtmlDivElement>(".card-title");
                string          title        = titleElement.TextContent.Trim();

                IHtmlAnchorElement linkElement         = element.QuerySelector <IHtmlAnchorElement>(".thumb-link");
                IHtmlImageElement  imageElement        = element.QuerySelector <IHtmlImageElement>(".product_image");
                IHtmlDivElement    priceElement        = element.QuerySelector <IHtmlDivElement>(".card-price");
                IHtmlDivElement    availabilityElement = element.QuerySelector <IHtmlDivElement>(".product-availability-label");
                string             offerStartDate      = availabilityElement.GetAttribute("data-freeofferstartdate");
                string             offerEndDate        = availabilityElement.GetAttribute("data-freeofferenddate");

                bool hasStartDate = DateTime.TryParseExact(offerStartDate, "ddd MMM dd HH:mm:ss Z yyyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out DateTime startDate);
                bool hasEndDate   = DateTime.TryParseExact(offerEndDate, "ddd MMM dd HH:mm:ss Z yyyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out DateTime endDate);

                if (!hasStartDate && !hasEndDate)
                {
                    logger.Info($"{title} has no start or end date");
                    continue;
                }

                DateTime now = DateTime.Now;
                if ((hasStartDate && now < startDate) || (hasEndDate && now > endDate))
                {
                    logger.Info($"{title} is not active right now");
                    continue;
                }

                string price = priceElement.TextContent.Trim();
                if (price.ToLower() != "free to play")
                {
                    logger.Info($"{title} is not free");
                    continue;
                }

                deals.Add(new Deal
                {
                    Discount = 100,
                    End      = hasEndDate ? endDate : (DateTime?)null,
                    Start    = hasStartDate ? startDate : (DateTime?)null,
                    Title    = title,
                    Link     = $"https://store.ubi.com/{linkElement.GetAttribute("href")}",
                    Image    = imageElement.GetAttribute("data-desktop-src")
                });
            }

            return(deals);
        }